Answer: is constant
Explanation:
In order to analyze the velocity of the stars within a galaxy, the <u>galaxy rotation curves</u> (developed by the American astronomer Vera Rubin) are used. These graphs are elaborated as a scatter diagram in which the orbital velocity of the stars present in a galaxy is represented on the Y axis and the distance of these stars to the center of the galaxy on the X axis.
Thanks to this diagram, it has been possible to observe a characteristic behavior in the rotation speed of the stars (and gas) present in the galaxies, which differs from the rules of the orbital movement of the planetary systems postulated by Newton and Kepler.
This means that in these galaxy rotation curves it has been observed that the rotation speed of stars and gas is "constant", regardless of the distance to the center of the galaxy. This discrepancy and these results were then used to demonstrate the existence of dark matter in the universe.
Jeremy hears on the news that Los Angeles has had a devastating earthquake. he believes that the residents were being punished for leading sinful lives. this best illustrates the just-world phenomenon.
Seismic vibrations can cause ground movements and surface cracks. Surface cracks can cause damage to roads and buildings as well as other hazards. In this example, a paved road has surface damage with large cracks and collapses.
No, there will be no devastating earthquakes of magnitude 10 or greater. The magnitude of an earthquake depends on the length of the fault on which it occurs. In other words, the longer the disturbance, the bigger the earthquake.
Learn more about devastating earthquakes at
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Answer: Body waves travel through earths interior while surface waves travel along the earths surface. Body waves travel more rapidly than surface waves.
Explanation:
Question: inside earth a forms due to the different temperatures of the core?
Answer: convection cell
Explanation: a convection cell cools and heats up fluid so it does this in the earths core
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